Malicious PDF — malware analysis report

Static analysis result for SHA-256 6b5521788f7582be…

MALICIOUS

PDF

72.7 KB Created: 2021-02-28 03:28:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: b7b363cbe1da09a0417a85ea931a176a SHA-1: 2c9c77c7dabf6ec5a7c815f60c869b32db69eeaa SHA-256: 6b5521788f7582be1f589a8670866b041825435b1b3542b2eb7b5b6d72c61128
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://jottigo.ru/wix?keyword=be+thin+medical+weight+loss+center PDF link annotation
    • https://redefanugolikiz.weebly.com/uploads/1/3/5/9/135975275/pasenerif_rojodenumolub_gitunakoniz_gurakodobu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4466675/normal_602f1b6b1051c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374851/normal_5fe908db8f836.pdfIn PDF document text
    • http://nesorus.mywebcommunity.org/computer_box_repair_near_me.pdfIn PDF document text
    • https://rubuvewoxuvima.weebly.com/uploads/1/3/4/8/134873715/zubinegawofa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4453336/normal_60139db1169e7.pdfIn PDF document text
    • https://ludubilataso.weebly.com/uploads/1/3/4/7/134719947/6404463.pdfIn PDF document text
    • http://yogait.space/95850225045k2yl4.pdfIn PDF document text
    • http://fimunukowira.iblogger.org/40334941289.pdfIn PDF document text
    • http://duzusedolatepe.mypressonline.com/in_search_of_our_mothers_gardens_full_essay.pdfIn PDF document text
    • http://ru-en.xyz/magokotemevulimadozupflav9.pdfIn PDF document text
    • http://cozyplacefor.rest/hollow_knight_how_to_break_shaking_groundqc1i5.pdfIn PDF document text
    • http://ing-cliente.com/dupomejapumilojitiim3.pdfIn PDF document text
    • https://jitolabifu.weebly.com/uploads/1/3/1/6/131607188/7197128.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://taroxul.epizy.com/69807893265.pdfIn PDF document text
    • http://sogivuwe.onlinewebshop.net/68007821604.pdfIn PDF document text
    • http://manosotidokef.myartsonline.com/garmin_gps_76_user_manual.pdfIn PDF document text
    • http://faxiruvud.myartsonline.com/28402439622.pdfIn PDF document text
    • http://sikejilewiz.epizy.com/another_world_douluo_dalu_apk.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e015.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE015 5496 bytes
SHA-256: 800d6a7e6bcbbaf3017350e577bdcb8248a6fb4015d781ab1bcde5f00c9a33ab
font_01_sfnt_off0000f2ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF2AB 10236 bytes
SHA-256: 03da62a0d2c3b5c71594216c26b536d75993010b07532086eba6043382bb0f98